tiles attribute type: bug or expected behaviour?

[he...@teradyne.com]

I asked this on the tiles dev list but haven't heard anything.

I've seen a behaviour with tiles that I need some feedback on.
I'm attempting to set message tag key's at runtime using the name
attribute.
I set the name attribute in my tiles definition file.

In my tiles def. file I do something like this.
 <put name="InfoHeader" value="some.heading" type="string"/>

In my JSP I do:
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-tiles.tld" prefix="tiles" %>
<tiles:importAttribute/>
<h1><bean:message name="InfoHeader"/></h1>
..

This gives me a servletexception.
[ServletException in:/layouts/BodyInfoLayout.jsp] Property for message key
must be a String' javax.servlet.ServletException: Property for message key
must be a String at
..

HOWEVER, if I do the following in my tiles definition file:
 <put name="InfoHeader" value="some.heading" type="java.lang.String"/>

the above JSP works correctly. The problem is that it doesn't follow the
tiles config dtd
The type is only supposed to be "string", "page" or "definition"
Is this a known issue or is it supposed to work this way or what??

---
Henrik Bentel



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Re: tiles attribute type: bug or expected behaviour?

[Cedric Dumoulin <ce...@apache.org>]

  Hi,


henrik.bentel@teradyne.com wrote:

>I asked this on the tiles dev list but haven't heard anything.
>
  We can't always reply immediately ;-)

>
>I've seen a behaviour with tiles that I need some feedback on.
>I'm attempting to set message tag key's at runtime using the name
>attribute.
>I set the name attribute in my tiles definition file.
>
>In my tiles def. file I do something like this.
> <put name="InfoHeader" value="some.heading" type="string"/>
>
>In my JSP I do:
><%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
><%@ taglib uri="/WEB-INF/struts-tiles.tld" prefix="tiles" %>
><tiles:importAttribute/>
><h1><bean:message name="InfoHeader"/></h1>
>..
>
>This gives me a servletexception.
>[ServletException in:/layouts/BodyInfoLayout.jsp] Property for message key
>must be a String' javax.servlet.ServletException: Property for message key
>must be a String at
>..
>
>HOWEVER, if I do the following in my tiles definition file:
> <put name="InfoHeader" value="some.heading" type="java.lang.String"/>
>  
>
>the above JSP works correctly. The problem is that it doesn't follow the
>tiles config dtd
>The type is only supposed to be "string", "page" or "definition"
>Is this a known issue or is it supposed to work this way or what??
>  
>
The 'type' attribute is an hint for the insert tag: if the type is 
'string', the insert tag output the attribute as a String; if the type 
is 'definition', the insert tag try to locate the definition by 
considering the attribute value as the definition name...
  The importAttribute tag doesn't take into account the 'type'. The 
value of the put tag is imported in the specified scope. But, when you 
specify a 'type' attribute, the value is not a String, but a class named 
Attribute containing the specified value and the specified type. Thus, 
importAtrtibute import the class, and not the value.

  The 'type' attribute is optional. If you don't have a special need to 
specify it, don't do it. In your case, write:

<put name="InfoHeader" value="some.heading"/>

This should work for you.

  Cedric

>---
>Henrik Bentel
>
>
>
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>
>  
>


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